Questions
The following data show the brand, price ($), and the overall score for six stereo headphones...

The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is

ŷ = 23.194 + 0.318x,

where x = price ($) and y = overall score.

Brand Price ($) Score
A 180 76
B 150 71
C 95 61
D 70 58
E 70 38
F 35 26

(a) Compute SST, SSR, and SSE. (Round your answers to three decimal places.)

SST =  

SSR =

SSE =

(b) Compute the coefficient of determination r2.  (Round your answer to three decimal places.)

r2 =

(c) What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)

In: Statistics and Probability

You may need to use the appropriate appendix table to answer this question. According to Money...

You may need to use the appropriate appendix table to answer this question.

According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847.† Assume that annual household income in Maryland follows a normal distribution with a median of $75,847 and standard deviation of $33,800.

(a)

What is the probability that a household in Maryland has an annual income of $110,000 or more? (Round your answer to four decimal places.)

(b)

What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.)

(c)

What is the probability that a household in Maryland has an annual income between $60,000 and $70,000? (Round your answer to four decimal places.)

(d)

What is the annual income (in $) of a household in the eighty-sixth percentile of annual household income in Maryland? (Round your answer to the nearest cent.)

$  

In: Statistics and Probability

You are to read and review/critique a scholarly journal article on a topic in child psychology/child...

You are to read and review/critique a scholarly journal article on a topic in child psychology/child development "GENDER" The article must be primary research(i.e., not a literature review, review article itself, magazine/newspaper, blog, etc.) The appropriateness of the article, written expression and reflective critique will be assessed. Using the link below

https://hal.archives-ouvertes.fr/hal-00513341/document

At least a page worth's and should be in an ESSAY FORMAT.

Suggested questions to consider:

Was there a large enough sample?

What research model did they use?

What would you have used?

Is this research valid?

It is truly testing what it is meant to be testing?

What did the authors conclude?

Do you agree with their conclusions?

Is this research useful to clinicians?

What did you think of this journal article?

What new learning can you take from this article that applies to your own life?

In: Psychology

You are to read and review/critique a scholarly journal article on a topic in child psychology/child...

You are to read and review/critique a scholarly journal article on a topic in child psychology/child development "GENDER" The article must be primary research(i.e., not a literature review, review article itself, magazine/newspaper, blog, etc.) The appropriateness of the article, written expression and reflective critique will be assessed. Using the link below

https://hal.archives-ouvertes.fr/hal-00513341/document

At least a page worth's and should be in an ESSAY FORMAT.

Suggested questions to consider:

Was there a large enough sample?

What research model did they use?

What would you have used?

Is this research valid?

It is truly testing what it is meant to be testing?

What did the authors conclude?

Do you agree with their conclusions?

Is this research useful to clinicians?

What did you think of this journal article?

What new learning can you take from this article that applies to your own life?

In: Psychology

Your grandparents have been left a substantial amount of money and want to invest in a...

Your grandparents have been left a substantial amount of money and want to invest in a company. Your grandfather trusts you to make a recommendation, but he also wants to see the reasoning behind your choice. You have an idea of which company to choose and you decide to prepare 3 sets of documents for your grandparents to consider: business analysis, combined income and cash flow statement, and trend analysis. Business Analysis Select a public company that trades on either the NYSE or the NASDAQ. Perform a business analysis (both external and internal) for your company using the most recent information from various sources. Possible sources include the following: Annual report or form 10-K Magazine or newspaper articles Company Web sites Government information Industry information Rating agencies Analyst reports Internet articles.

In: Finance

Mr. Alex is the head of operations at TractParts Pvt. Ltd., a well known Indian manufacturer...

Mr. Alex is the head of operations at TractParts Pvt. Ltd., a well known Indian manufacturer of pumps, engines, electric motors and transformers. The company is one of India’s earliest industrial groups established in the 1980 which has grown to be a big player in the Indian manufacturing industry. TractParts under the supervision of Mr. Alex has been supplying modern tractor engines to the leading tractor manufacturing firms like Sonalika and John Dear. The bulk of demand for tractors comes during the months from October to March. As a result of this seasonality in demand, the demand for the tractor engines also keeps fluctuating throughout the year as shown in Exhibit 1. Exhibit 1 shows the orders placed with TractParts by the firms Sonalika and John Dear in advance based on their own forecasting models.

Exhibit 1:

Month Sonalika John Dear Total
April 500 400 900
May 300 200 500
June 100 150 250
July 125 100 225
August 200 150 350
September 300 350 650
October 1500 1450 2950
November 3000 3200 6200
December 3200 3500 6700
January 3800 3500 7300
February 2200 2150 4350
March 2200 2400 4600

To meet the demands, the company can follow chase strategy or level strategy In the chase strategy, the monthly production takes place as per the total demand in that month and to follow this strategy, the company can hire new employees during higher demand and fire the employees during lower demand. This strategy basically saves on the inventory carrying cost and hence the total cost. In the level strategy, the company produces the average demand in a month and the excess units are stored as inventory and all stock outs are backlogged and supplied from the following month’s production. This strategy particularly saves on the employee hiring and firing cost. Moreover, the backorder quantity is also directly proportion to the demand placed by the tractor manufacturing firms in order to give equal treatments to them.

At the beginning of the period, there are 100 workers in the TractParts manufacturing facility and a total of 200 working hours (8 hours/day * 25 days/month) are available per worker per month. Due to the strict government policies, the company canny allow overtime.

Mr. Alex is concerned about the fluctuating demand and understands that these companies can change their demand pattern based on the promotion and discount offered to them. In order to enhance the total profit, Mr. Alex wanted to optimize costs while meeting the demand pattern. He had therefore asked to one of his associates to find out the associated costs and the cost structure. The associate presented cost structure for the engine manufacturing line as is shown in Exhibit 2.

Exhibit 2:

Component Cost Unit
Material Cost 140 $/unit
Inventory Cost 15 $/unit/month
Stock-Out Cost 20 $/unit/month
Hiring Cost 450 $/worker
Firing Cost 750 $/worker
Labor Hours Required 4 per unit
Regular Labor Rate 4 $/hour
Beginning Inventory 750 units
Desired Closing Inventory 400 units
Selling Price 280 $/unit

Mr. Alex had asked the associate to find out the possibility of discount that could be offered to the tractor manufacturers. Mr Alex was informed that at max 10% discount could be given to them and as per company policy, discount would be offered for only one month. The associate also pointed out that whenever such kinds of discounts are offered, the tractor manufacturers have a tendency to order more in that month. However, the order size for following months is significantly reduced compared to the previous month.

After going through some previous data, Mr. Alex has made some observations. For Sonalika, 10% decrease in price for a particular month results in 45 % increase in the demand for the same month followed by 15% decrease in demand for the next two months. And in the case of John Dear, 10% decrease in price for a particular month results in 80% increase in the demand for the same month followed by 25% decrease in demand for the next two months. However, Mr. Alex also observed that if the TractPart offers a discount in the last 2 months of the financial year, there is no change in the demand pattern since there is a very fixed demand of tractors in the end of season.

Mr. Alex faced a unique problem as the TractParts had proven itself over the years and was considered a symbol of quality, reliability and accountability. Being a part of this value system, Mr. Alex knew that any unfair treatment with the tractor manufacturers would not be tolerated. Mr. Alex has a meeting with the company’s Sr. VP the next morning. He is concerned about the production policy to be adapted and discount to be given offered to increase the total profit. Please help Mr. Alex to take the decision focusing on the following questions.

Questions:

1. Estimate the profit made by TractParts when it follows the level strategy and no discount is offered to the tractor manufacturing firms.

2. Estimate the profit made by TractParts when it follows the chase strategy and no discount is offered to the tractor manufacturing firms

3. Estimate the profit made by TractParts when it follows the level strategy and a 10% discount is offered to the tractor manufacturing firms in October.

4. Find out the month having the peak demand in which 10% discount can be offered to the tractor manufacturing firms, when TractParts follows the level strategy. (Hint: Estimate the profit made by TractParts when it follows the level strategy and a 10% discount has been offered to the tractor manufacturing firms in various months.)

5. Estimate the profit made by TractParts when it follows the chase strategy and a 10% discount is offered to the tractor manufacturing firms in October.

6. Find out the month having the peak demand in which 10% discount can be offered to the tractor manufacturing firms, when TractParts follows the chase strategy. (Hint: Estimate the profit made by TractParts when it follows the chase strategy and a 10% discount has been offered to the tractor manufacturing firms in various months.)

I REALLY NEED HELP WITH 4 AND 6. PLEASE INCLUDE EXCEL SHEET. THANK YOU IN ADVANCE.

In: Operations Management

1) Describe the effect of hypovolemic shock on the blood vessels and the heart. 2) Atherosclerosis...

1) Describe the effect of hypovolemic shock on the blood vessels and the heart.

2) Atherosclerosis is a progressive disease of blood vessels that is responsible for millions of deaths each year. Describe the disease process, noting the involvement of specific cell/tissue types and molecules.

3) A woman in her early 50s appeared at a walk-in clinic, complaining of aching pain in her right leg following a fall. Visual examination revealed that the medial aspect of that leg was red and swollen. A diagnosis of phlebitis was made. What is phlebitis, and what more serious condition may result if proper healing does not occur?

4) For each of the following situations, describe the anticipated effect on blood pressure and the physiological basis of the response: (1) a high-salt diet, (2) a blow on the head that damages (disables) the vasomotor center, (3) an attack by a mugger, and (4) a hypothalamic tumor resulting in excess ADH production.

5) Mrs. Gray, a 50-year-old mother of seven children, is complaining of dull, aching pains in her legs. She reports that they have been getting progressively worse since the birth of her last child. During her physical examination, numerous varicosities are seen in both legs. How are varicosities recognized? What veins are most likely involved? What pathologic changes have occurred in these veins, and what is the most likely cause in this patient's case?

6) Mr. Wilson is a 45-year-old stockbroker with essential hypertension. He is African American, obese, and he smokes 2-3 packs of cigarettes daily. What risk factors for hypertension are typified by Mr. Wilson? What steps should be taken to treat Mr. Wilson, and what lifestyle changes should he make? What complications are likely if corrective steps are not taken?

7) A pregnant patient comes into a clinic and asks about a small painless dark compressible bulge that is becoming more apparent on her leg. What is it and what caused it?

8) At the battle of Shiloh in the American Civil War, Confederate General A. S. Johnston was killed when he was shot in the thigh. Witnesses reported that he bled to death almost before he realized that he was wounded. Which blood vessel was most likely to have been injured? Why is a tourniquet usually ineffective in stopping the bleeding from this wound?

9) A patient lost a lot of blood during surgery and his blood pressure dropped from 120/80 to 90/50. Describe how the kidneys respond to this change in blood pressure.

10) A patient has an 80% blockage of his left anterior descending coronary artery. Describe what occurs in terms of myocardial oxygen supply and demand if his sympathetic nervous system is stimulated.

In: Anatomy and Physiology

on October 1, 2019 , paige turner publishing received $5400 in cash for subscriptions covering one...

on October 1, 2019 , paige turner publishing received $5400 in cash for subscriptions covering one year recording the entry as a debit to cash and a credit to earn earn to subscriptions. The correct adjusting entry at December 31, 2019 ears ?

In: Accounting

A company sold merchandise for cash on September 30th. The merchandise was sold for $12,000 and...

A company sold merchandise for cash on September 30th. The merchandise was sold for $12,000 and had a cost of $7,000. The tax rate is 5%. Show all of your work!

Record the sale:

Record the remittance of the sales taxes to the state on October 30th.

In: Accounting

Fred turned 70 1/2 on October 1, 2015. He took the first required minimum distribution from...

Fred turned 70 1/2 on October 1, 2015. He took the first required minimum distribution from his traditional IRA on April 1 2016. What is the deadline for his next required minimum distribution?

In: Accounting